Auxilliary Blower Motor Resistor Location

Re: Blower Motor Resistor Location

New thread? Can't find where I'm supposed to enter a new thread?

I have a Cadillac Deville 2003 and the front blowers start when they feel like it so no air or A/C. I have been told by ' O' Reilly's ' auto spares that the blower motor resistor needs replacing. Fair enough so I got one. Where is it? and is it easy to replace? Yep they didn't know where it is on a Cadillac - not their fault I doubt they get asked very often.

I'm informed it's held in place by two bolts and according to the 'Haynes' manual wiring diagram it appears to be connected to the Auxiliary Blower Motor which is located behind the central Dash Board Consul is that where the resistor has to be accessed?

Re: Auxilliary Blower Motor Resistor Location

My 04 does the same thing I found that the plug on the motor is loose. If the blower won't start I just lean over and give the hush panel where the blower is a little tap and the blower starts right up.

Re: Auxilliary Blower Motor Resistor Location

OK I'm getting very conflicting information about the auxiliary blower motor location and whether or not it has a resistor that can or cannot be replaced.

Auto spares places say there is one on here I'm told there isn't one and the Haynes manual is as clear as mud as to the actual location of the motor itself and makes no mention of a resistor even for earlier year models.

The vehicle I have is a Cadillac Deville 2003 4.6 with a 32 valve North Star V8 engine. Cadillac want me to take it to a service center. No chance of that after one of their mechanics changed the rear set of brake pads instead of the front ones. I did the job myself once I became aware of the error. (The sound of grinding metal gave it away).

Would someone please clarify where the motor is located and how to access it. One source says it behind the center consul another states it's behind the passenger consul. Only one can be right surely.

An earlier response to this post stated that there is no replaceable resistor as it is integral to the motor on the 2003 model. So it is looking like I will need to get a replacement motor.

Re: Auxilliary Blower Motor Resistor Location

OK I'm getting very conflicting information about the auxiliary blower motor location and whether or not it has a resistor that can or cannot be replaced.

In your post #1, you were asking about the "front blowers". Now you are asking about the auxiliary blower. Talk about conflicting information.

For the record (again), your year model does not use resistors to control blower motor speed. Believe whatever information source you will, but this is a Cadillac owners board and some of us have the appropriate (Helms) Service Manuals available and even know whereof we speak.

Re: Auxilliary Blower Motor Resistor Location

Just so you know my 2003 Cadillac Deville does have an Auxiliary Blower Motor Resistor. I actually went looking to see if there were any cables that had become disconnected. I did the following:

1. Removed the divers side knee bolster.
2. Removed the passenger side knee bolster
3. Removed the upper center grill panel.
4. Removed the four bolts securing the lower center panel.
5. Disconnected the electrical connector to the lower center panel.
6. Folded back the carpet in the passenger side of the center panel to give access to the Auxiliary Blower Motor Resistor.
7. I removed the two bolts holding it in place.
8. I disconnected the wiring.

I replaced the resistor with a new one Just in case this was part of the problem. Unfortunately this did not correct the problem I'm having.

I did not find any disconnected cables.

If you would like me to provide you with a photograph I would be quite happy to do so.

Re: Auxilliary Blower Motor Resistor Location

Just so you know my 2003 Cadillac Deville does have an Auxiliary Blower Motor Resistor.

Mea culpa. Pass the ketchup so I can eat my words.
I was going on memory instead of looking at the schematic.

If you still have access to the area, I would remove the chassis harness connector at the resistor and run a jumper wire from pin C to a good chassis ground. That should cause the rear seat blower to run at high speed.

Re: Auxilliary Blower Motor Resistor Location

I have a 2003 Deville. Similar problem. The front blower comes on when it wants to. Sometimes it takes an hour, sometimes it takes a few minutes. Strange. I live in Savannah, GA where it is very HOT. A few minutes without AC is unbearable. The funny thing is, it just comes on for no apparent reason. WHen it is off, I have hit the dash, clicked EVERY button, turned EVER knob. I hit buttons fast, hold them in, anything I can think to try. Nothing works. But then, all of a subben, it just startes working. Then when I turn off the car, it is a gamle as to whether the blower will work when I start the car the next time. Is it this resistor? Or is it the blower motor, or a thermostat problem?

Re: Auxilliary Blower Motor Resistor Location

I realize it has been 3 years since your post, but I too am having the same problems. Already spent 2 hours looking for the resistor. Yes, I would like, if possible, any pics you can send me help with this new headache.
Thanks

Re: Auxilliary Blower Motor Resistor Location

Originally Posted by Loumar1684

I realize it has been 3 years since your post, but I too am having the same problems. Already spent 2 hours looking for the resistor. Yes, I would like, if possible, any pics you can send me help with this new headache.
Thanks

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FIRST -
are you having a problem with the FRONT blower - or the REAR blower -